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s2008m [1.1K]
3 years ago
7

Who ever get’s this right, I’ll give brainliest.

Mathematics
2 answers:
Nastasia [14]3 years ago
5 0
Sandra will recive 56$ of refund
muminat3 years ago
5 0
56$ is what Sandra would get hope this helps
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A pilot can travel 450 miles with the wind in the same amount of time as 360 miles against the wind. Find the speed of the wind
Lunna [17]

Given:

A pilot can travel 450 miles with the wind in the same amount of time as 360 miles against the wind.

Pilot's speed in still air is 315 miles per hour.

To find:

The speed of the wind.

Solution:

Let the speed of wind be x miles per hour.

Speed with wind = 315+x miles per hour

Speed against wind = 315-x miles per hour

We know that,

Time=\dfrac{Distance}{Speed}

According to the question,

\dfrac{450}{315+x}=\dfrac{360}{315-x}

Divide both sides by 90.

\dfrac{5}{315+x}=\dfrac{4}{315-x}

By cross multiplication, we get

5(315-x)=4(315+x)

5(315)-5x=4(315)+4x

5(315)-4(315)=4x+5x

(5-4)315=9x

Divide both sides by 9.

\dfrac{(1)315}{9}=x

35=x

Therefore, the speed of wind is 35 miles per hour.

4 0
3 years ago
Solve for x 9x + 1 equals 25 + x edg 2020?<br><br>x=2<br>x=3<br>x=4<br>x=5​
gregori [183]
No no no no no no no no no no no no
3 0
2 years ago
WILL GIVE BRAINLIEST! Find the equation of a line that passes through (-5,-2) and the intersection of the lines x+3y=0 and 4x-4y
Verdich [7]

Answer:

y + 2 = -0.069(x-+5)

Step-by-step explanation:

SInce the two lines intersects, we will equate it

Multiply x + 3y = 0 by 4;

4x + 12y = 0

4x-4y-13 = 0,

Subtracts both

12y +4y + 13 = 0

16y = 13

y = 13/16

get x;

x + 3(13/16) = 0

x = -39/16

The point of intersection is (0.8, -2.4) and (-5,-2)

Get the equation;

m = y2-y1/x2-x1

m = -2+2.4/-5-0.8

m = 0.4/-5.8

m = -0.069

Get the equation;

y - y0 = m(x-x0)

y - (-2)= -0.069(x-(-5))

y + 2 = -0.069(x-+5)

6 0
2 years ago
23 of all your books are fiction. 16 of those are historical fiction. What fraction of all your books are historical fiction?
Svetllana [295]
Sixteen out of twenty three

4 0
3 years ago
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What is the total area, in square inches, of the shaded sections of the trapezoid below?
Rudik [331]
You can add 5.6 and 5.9 which is 11.5 x 8 = 92 then divide that by 2 and you have 46
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2 years ago
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